2000SILVERTA

I keep getting an oxygen sensor heater code. Where should I start? I have SLP longtubes with no cats. I have o2 simms in the rear. Could one of them be bad? Or is it one of my front o2 sensors. I cant remember what position and bank the code was coming from, and my laptop is down. Any help would be appreciated.

WFO_SS

iTrader: (2)

mine was setting those codes sometimes, too. especially when it was cold, first thing in the morning. think it has something to do w/ the headers or o2's being in slightly different locations. put new ones in mine after custom program (the old ones were fouled from running too rich,) but the codes came back after a few weeks when cold.

Sporadic

If you figure it out, let me know. I've had that code, replaced the 02s, but it's still there. I'm worried it might be a short somewhere in the harness.

Matt

2000SILVERTA

It is on bank 2 sensor 1 if this helps. I am gonna swap my O2 sensors if the code comes on again.